<div class="d-flex justify-content-center">
  <div class="d-flex align-items-center login-content">
    <form [formGroup]="myForm" (ngSubmit)="onSubmit(myForm.value)">
      <h3 class="d-flex justify-content-center">用户登录</h3>
      <div class="form-group">
        <label for="userName">用户名</label>
        <input type="text" class="form-control" id="userName" aria-describedby="输入用户名" name="userName"
          formControlName="userName" [ngClass]="{'is-invalid':userName.invalid, 'is-valid':userName.valid}">
        <div class="valid-feedback">
          用户名格式正确!
        </div>
        <div class="invalid-feedback">
          <span *ngIf="userName.hasError('required')">用户名必须填写!</span>
          <span *ngIf="!userName.hasError('required') && userName.hasError('pattern')">用户名必须以zime开头！</span>
          <span
            *ngIf="!userName.hasError('required') && !userName.hasError('pattern') && !userName.hasError('minLength')">用户名长度必须大于6位!</span>
        </div>
      </div>
      <div class="form-group">
        <label for="password">密码</label>
        <input type="password" class="form-control" id="password" name="password" formControlName="password"
          [ngClass]="{'is-invalid':password.invalid, 'is-valid':password.valid}">
        <div class="valid-feedback">
          密码填写正确!
        </div>
        <div class="invalid-feedback">
          <span *ngIf="!password.hasError('minLength')">密码必须大于6位!</span>
        </div>
      </div>
      <button type="submit" class="btn btn-primary btn-block" [routerLink]="['/home']" (click)="login()">提交</button>

      <a style="float: left;">注册</a>
      <a style="float:right">忘记密码</a>
    </form>
  </div>
</div>